Verify the file path. Legitimate versions are found in dedicated software folders, not in C:\Windows or Temp folders. Common Troubleshooting proUSBHotelCardSystem Download

Creating "Master Cards" or "Floor Cards" for housekeeping and maintenance.

If you find this file on a personal home computer that has nothing to do with hotel management, it may be a virus or a leftover from a previous installation.

For the program to function, a Card Encoder must be connected via a USB port or RS232 cable.

The file is part of a suite of hotel management software designed to bridge the gap between a computer and a physical . When you check into a hotel and the receptionist swipes a plastic card through a small device to "program" it, cardlock.exe is usually the application running in the background to handle that data transfer. Key functions of the software include: